CLAT Syllabus is devided in to five section English, General Knowledge, Mathematics, Legal Aptitude and Logical Reasoning. To know about in detail of the syllabus you can go through with given below link.

 CLAT Syllabus

For GK & current affairs you can follow the below given topics:

 Current Affairs :There are certain business/economics related questions.Sports is another area where you can get the questionslike RIO Olympics, Paralympics and international achievements of Indian sportsperson’s.
   
Static GK : There are the subjects like History,Geography,Science brush up all these subjects you have read pre 10th.
 History : focus more on pre independence and post independence history of India.
Science: Focus more on day to day general science questions. Inventors,discoveries and past nobel prize winners very important.

Good Luck!